//
// generic/detail/impl/endpoint.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#ifndef ASIO_GENERIC_DETAIL_IMPL_ENDPOINT_IPP
#define ASIO_GENERIC_DETAIL_IMPL_ENDPOINT_IPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)

#include "asio/detail/config.hpp"

#include <cstring>
#include <typeinfo>
#include "asio/detail/socket_ops.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/detail/throw_exception.hpp"
#include "asio/error.hpp"
#include "asio/generic/detail/endpoint.hpp"

#include "asio/detail/push_options.hpp"

namespace asio {
    namespace generic {
        namespace detail {

            endpoint::endpoint() {
                init(0, 0, 0);
            }

            endpoint::endpoint(const void *sock_addr,
                               std::size_t sock_addr_size, int sock_protocol) {
                init(sock_addr, sock_addr_size, sock_protocol);
            }

            void endpoint::resize(std::size_t new_size) {
                if (new_size > sizeof(asio::detail::sockaddr_storage_type)) {
                    asio::error_code ec(asio::error::invalid_argument);
                    asio::detail::throw_error(ec);
                } else {
                    size_ = new_size;
                    protocol_ = 0;
                }
            }

            bool operator==(const endpoint &e1, const endpoint &e2) {
                using namespace std; // For memcmp.
                return e1.size() == e2.size() && memcmp(e1.data(), e2.data(), e1.size()) == 0;
            }

            bool operator<(const endpoint &e1, const endpoint &e2) {
                if (e1.protocol() < e2.protocol())
                    return true;

                if (e1.protocol() > e2.protocol())
                    return false;

                using namespace std; // For memcmp.
                std::size_t compare_size = e1.size() < e2.size() ? e1.size() : e2.size();
                int compare_result = memcmp(e1.data(), e2.data(), compare_size);

                if (compare_result < 0)
                    return true;

                if (compare_result > 0)
                    return false;

                return e1.size() < e2.size();
            }

            void endpoint::init(const void *sock_addr,
                                std::size_t sock_addr_size, int sock_protocol) {
                if (sock_addr_size > sizeof(asio::detail::sockaddr_storage_type)) {
                    asio::error_code ec(asio::error::invalid_argument);
                    asio::detail::throw_error(ec);
                }

                using namespace std; // For memset and memcpy.
                memset(&data_.generic, 0, sizeof(asio::detail::sockaddr_storage_type));
                if (sock_addr_size > 0)
                    memcpy(&data_.generic, sock_addr, sock_addr_size);

                size_ = sock_addr_size;
                protocol_ = sock_protocol;
            }

        } // namespace detail
    } // namespace generic
} // namespace asio

#include "asio/detail/pop_options.hpp"

#endif // ASIO_GENERIC_DETAIL_IMPL_ENDPOINT_IPP
